; Test that the cos library call simplifier works correctly. ; ; RUN: opt < %s -instcombine -S | FileCheck %s -check-prefix=NO-FLOAT-SHRINK ; RUN: opt < %s -instcombine -enable-double-float-shrink -S | FileCheck %s -check-prefix=DO-FLOAT-SHRINK target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" declare double @cos(double) ; Check cos(-x) -> cos(x); define double @test_simplify1(double %d) { ; NO-FLOAT-SHRINK-LABEL: @test_simplify1( %neg = fsub double -0.000000e+00, %d %cos = call double @cos(double %neg) ; NO-FLOAT-SHRINK: call double @cos(double %d) ret double %cos } define float @test_simplify2(float %f) { ; DO-FLOAT-SHRINK-LABEL: @test_simplify2( %conv1 = fpext float %f to double %neg = fsub double -0.000000e+00, %conv1 %cos = call double @cos(double %neg) %conv2 = fptrunc double %cos to float ; DO-FLOAT-SHRINK: call float @cosf(float %f) ret float %conv2 } define float @test_simplify3(float %f) { ; NO-FLOAT-SHRINK-LABEL: @test_simplify3( %conv1 = fpext float %f to double %neg = fsub double -0.000000e+00, %conv1 %cos = call double @cos(double %neg) ; NO-FLOAT-SHRINK: call double @cos(double %conv1) %conv2 = fptrunc double %cos to float ret float %conv2 }